weeks 4-6 Flashcards

1
Q

What are the 3 most common clefts?

A

Cleft lip, cleft palate, cleft nasal deformities

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2
Q

What are some surgical techniques used to reinforce facial fractures?

A

mini plates, micro plates, titanium screws and absorbable implants

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3
Q

What is considered to be the ‘critical opening diameter’? (cm)

A

3 cm

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4
Q

What are the cranofacial clefts? (5)

A

naso-ocular, oro-ocular, oro-aural, mandibular, mid-line/paramidline clefts.

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5
Q

what does it mean by a cleft?

A

the lack of fusion between cranofacial bones and soft tissue.

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6
Q

For larger areas being treated with filler, what technique is used?

A

fanning or cross hatching

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7
Q

injecting collagen contains what type of collagen?

A

type 1 & 2

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8
Q

What type of collagen is the most resilient?

A

Bovine.

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9
Q

what % of people will develop an allergy to bovine?

A

3-10%

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10
Q

if you are allergic to bovine what other collagen can you have?

A

porcine.

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11
Q

what is the collagen suspended in?

A

saline with lidocaine

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12
Q

when is injected collagen usually degraded by?

A

6 months

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13
Q

What is hyalauronic acid indicated for?

A

giving facial volume

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14
Q

What are some contraindications for hyalauronic acid?

A

breast feeding pregnancy, inflammatory skin conditions or infections, around the eyes and clients prone to hypertrophic scaring.

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15
Q

Where is hyalauronic usually sourced from?

A

bacteria or avian sources

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16
Q

is Poly- L lactic acid considered semi permanent or permanent

A

semi permanent

17
Q

what is calcium hydroxypatite indicated for use?

A

HIV suffers.

18
Q

What type of filler is considered permanent and what response does the body have to it?

A

the PMMA microspheres, the body initiates a foreign body response to the material, encapsulating them with collagen fibers, which prevents the PMMA from migrating.

19
Q

How long do PMMA fillers last for?

A

10+ years

20
Q

what is a common complication of using silicone?

A

it can cause granulomas

21
Q

is collagen temporary, semi permanent or permanent?

A

temp

22
Q

is hyalauronic acid temporary, semi permanent or permanent?

A

temp

23
Q

is Poly -L lactic acid temporary, semi permanent or permanent?

A

semi permanent

24
Q

is PMMA temporary, semi permanent or permanent?

A

permanent

25
Q

is silicone temporary, semi permanent or permanent?

A

permanent

26
Q

is HEMA temporary, semi permanent or permanent?

A

permanent

27
Q

what mechanism of action do the temporary fillers have?

A

replacement

28
Q

what mechanism of action does Poly L lactic, calcium hydroxyapatite and HEMA have?

A

stimulatory

29
Q

what mechanism of action do silicone and PMMA have?

A

foreign body encapsulation